Leonidas g



(No Model.)

"AUTOMATIC STEAM PRESSURE REGULATOR. No. 342,161. Patented May 18, 1886.

I I-VITNESSLS. LNVENTOR.

d W I PER I I r (I 2o steam-pressure on said piston, as will be here-UNITED STATES PATENT OFFICE.

LEON IDAS G. \VOOLLEY, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO HENRY H.MOGAFFEY AND CHESTER BRADFORD, BOTH OF SAME PLACE.

AUTOMATIC STEAM-PRESSURE REGULATOR.

SPECIFICATION forming part of Letters Application filed November 16,1885.

To all whom it may concern-.-

Be it known that I, LEONIDAS G. \VooLLnY, of the city of Indianapolis,county of Marion, and State of Indiana, have invented certain 5 new anduseful Improvements in Automatic Steam-Pressure Regulators, of which thefollowing is a specification.

The object of my said invention is to produce a device which. shallregulate the passagev of steam through a pipe by the pressure of thesteam itself, or, in other words, an automatic steanrpressure regulator.This object is accomplished by'placing a pivoted valve in the pipe, thepivot or shaft of which extends out-.

side the pipe, connecting said pivot or shaft with a piston located in abranch leading from the pipe on the side of the valve from which thesteam-pressure comes, and attaching a spring which will operatereversely to the inafter more particularly described.

Referring to the accompanying drawings, which are made a part hereof,and on which similar letters of reference indicate similar parts, Figurel is a perspective view of a section of steam-pipe provided with myinvention, and Fig. 2 is a central longitudinal section thereof.

In said drawings, the portions marked A represent the section of pipe towhich my invention is applied; B, the pivoted lever; O, the valve; D,the piston, and E the spring. The section of pipeA is adapted to becoupled at each end to ordinary piping or other devices 3 5 throughwhich the steam passes. At or near its center it is provided with astud, a, carrying pivots or pivot-bearings for the lever B. At or nearone end is a branch, a, in which the piston D operates, and at the otherend it 0 is provided with bearings for the shaft or pivot of the valve.At each end it is adapted to be coupled to the pipes A A or otherdevices, as shown. The lever B is mounted, by means of pivots orbearings, on the stud a, and is con- 4 5 nected at one end by aconnecting link or rod, 1), to the crank-arm of the Valve, and at theother end by a similarconnecting link or rod, d, to the piston D. Thevalve 0 is shown as of that variety known as a butterfly-valve. It isprovided with the usual pivot-shaft, c, on the end of which is acrank-arm, c, to

Patent No. 34:2,161, dated May 18, .1886.

Serial No. 182,904. (No model.)

which the link or rod 1) is connected. The piston D fits and operates inthe branch a of the pipe A, and is connected, as before stated,

by the link or rod (7, to the lever B. The spring E is connected at oneend to the pipe A, or to some other suitable point, and atthe other endto. the lever B, and operates through said lever and its connecting-rodreversely to the steam-pressure on the piston D.

The operation ofmy invention is as follows: The steam-pressure comes inthe direction of the arrow through the pipe A, or otherwise, from thesteam-boiler into the pipe A. The spring E being properly adjusted, thepressu re operates, through the piston,tl1e lever, and theconnecting-rods, to hold the valve 0 tojust that inclination which willpermit the desired amount of steam to pass to produce the requiredeffect. If the steam-pressureincreases, 71: the valve C will be closedproportionately, as will be readily understood, and as it decreases itwill be opened in like manner. The spring E can be adjusted to anyresistance desired, so as to produce exactly the proper result.

This invention is particularly useful in connection with incandescentlocomotive electric head-lights, and is applied to the pipeleading fromthelocomotive-boiler to the engine which drives the dynamo. 3y its use,no matter what the stcanrpressu rein the boiler, an equal and steadypressure is maintained on the engine and the dynamo, and thus an equaland unvarying current is produced,which is very desirable in lights ofthis character.

Of course the invention can be applied to other uses; but this is one inwhich it is particularly valuable.

Having thus fully described my said invention, what I claim as new, anddesire to se- 9 cure by Letters Patent, is-

1. The combination, with asteampipe, ofa butterfly-valve pivoted at itscenter therein,

a branch having a piston therein, a pivoted lever connected to saidpiston and said valve, and a spring or equivalent device arranged tooperate on said lever revcrsely to the pressure of the steam on saidpiston,whereby the steampressure is automatically regulated,substantially as set forth.

2. The combination of the steam-pipe A, having a branch, a, a pistonlocated and op ICO crating in said branch, a valve, 0, pivoted at itscenter in said pipe A, a lever pivoted in suitable bearings between saidbranch and said valve, one end of which is connected to each, and aspring arranged to operate reversely to the steam-pressure upon saidpivoted lever, whereby said steam-pressure is automatically regulated,substantially as set forth.

3. The combination, in a steam-pressure regulator, of the stean1-pipe A,a valve therein, a branch in said steam-pipe between said valve and thesteam-boiler, a lever connected at one end to an arm on thevalve-pivot,and

at the other end to the piston in the branch, I 5 and a spring orequivalent device operating revers'ely to the steampressure on saidpiston. 4. lhe combination of the 'pipe A, branch a, stud a, pivotedlever B, valve 0, having pivot-shaft c, crank-arm 0, links I) and (Z,piston D, and spring E, substantially as set forth. In witness whereof Ihave hereunto set my hand and'seal at Indianapolis, Indiana, this 30thday of October, A. D. 1885.

LEONIDAS G. IVOOLLEY. [In s.] In presence of- (3. BRADFORD, CHARLEs L.THURP-ER.

